Mo Organomolybdenum Compounds

This volume 8 is the fourth in a series dealing with organomolybdenum compounds. An Empirical Formula Index and a Ligand Formula Index provide ready access to the compounds covered. Volume 5 describes mononuclear organomolybdenum compounds with isocyanide, 3 4 carbene, carbyne, alkynyl, alkene, alkyne, L, and L ligands with and without additional CO groups. Volume 6 starts the description of mononuclear organomolybdenum compounds with 5 one L Ligand, a Ligand bonded to molybdenum by five carbon atoms. The compounds contain either zero or one CO group bonded to the molybdenum atom. Volume 7 continues the 5 description of L-molybdenum compounds containing two CO groups, but no additional nl 5 ligands. This volume describes L-molybdenum compounds with two CO groups and additional 1 4 L to L ligands. Following the nomenclature used in this series of organomolybdenum com pounds, nl is an organic Ligand bonded by n C atoms to molybdenum, and mo is an electron 2 donor Ligand with m donor electrons. Thus 0 denotes a Ligand such as PR . 3 Many of the data, particular those in tables, are given in an abbreviated form without units; for explanations see p. X. Additional information, if necessary, is given before the individual table. Frankfurt am Main Manfred Winter November 1992 Wolfgang Petz X Remarks on Abbreviations and Dimensions Many compounds in this volume are presented in tables in which numerous abbreviations are used, the dimensions are omitted for the sake of conciseness. This necessitates the following clarifications.

Auteur
Wolfgang Petz, Dr. phil., ist Historiker und promovierte an der Universität Augsburg. Er war Mitarbeiter im Haus der Bayerischen Geschichte Augsburg, wo er an der Konzeption und Realisierung mehrerer Landesausstellungen mitwirkte, und ist Lehrer an einem Kemptener Gymnasium.

Texte du rabat

The present volume on organomolybdenum chemistry completes the description of the rich chemistry of the 15-electron fragment 5LMo(CO)2. The 5L ligands are ring systems and represent mainly C5H5, indenyl, and C5(CH3)5 or several other substituted derivatives of C5H5. The first sections describe the bonding of this fragment to other 1L systems which formally contribute one electron in the form of alkyl and aryl groups or various side-on bonded E=CR2 derivatives, two electrons in the form of carbene, isonitril, or ylide ligands, and even three electrons in the form of carbyne ligands, resulting in a formal molybdenum-to-carbon triple bond represented by the general formula 5LMo(CO)2hCR. Three other sections deal with the bonding of this fragment to 2L ligands (mainly olefines). 3L ligands (allyl, trimethylenemethane derivatives), and 4L ligands (derivatives of butadiene). Various neutral two-electron donors, halogens or other -bonded heteroatoms, and charges satisfy the electron requirement of the compounds in obeing the Effective Atomic Number rule. In compounds with four different types of ligands and with a cis arrangement of the two CO groups, metal chirality appears. These options generate versatile types of compounds and isomers, thus stimulating further research in this area. An empirical formula index and ligand index at the end facilitate the compound search.

Contenu
Organomolybdenum Compounds 8.- Empirical Formula Index.- Ligand Formula Index.- Physical Constants and Conversion Factors.